Premium Quality: Made from high-grade 304 stainless steel, ensuring durability and long-lasting performance.Personalized Touch: Add your first name or company logo, permanently engraved on the bottle for a unique and customized look.Temperature Control: Double-layered insulating wall optimally keeps your drink hot or cold for up to 12 hours, providing the perfect beverage experience.Generous Capacity: With a size of 22 cm in height and 6 cm in diameter, the bottle can hold up to 500 ml or 18 oz of liquid, allowing for ample hydration throughout the day.Smart Touch Screen LCD: Conveniently monitor and adjust the temperature of your beverage with the intuitive touch screen display.4 hrs. Lasting Insulation The vacuum of cups and cups can block heat transfer. Our products hold liquid heat above 42 C for up to 6 hours and liquid cooling below 10 C for up to 5 hours. This is longer than other vacuum bottles. (After 24 hours at 100 C water, the temperature is maintained at about 40 C).Food Safe Silicone Cover The inner wall is made of 304-grade food-grade stainless steel and the outer case is made of high quality 204 stainless steel. It has been approved by the FDA for your drinking needs. Of course, 100% does not contain BPA